5" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Floor Grille + Product Details Size –

+ Product Details Size – 20"w X 10"h is the size for the duct opening measurement only

Pre-flared ends with nuts are for simple and easy installation

+ Product Details High Quality - Aluminum housing on the outside and on the inside for the best insulation value

Its polished pre-finish gloss varnish not only adds to its appeal but also ensures easy installation

5" Insulated Aluminum Flexible HVAC Duct R-8.0 – 25' Length Floor Grille + Product Details Size –+ Product Details High Quality Aluminum housing on the outside and on the inside for the best insulation value Insulation A thick blanket of fiberglass insulation provides you with an R Value of 8. 0 Energy Efficient Air tight inner core decreases the pressure loss and provides a more hygienic environment high energy efficient No fiberglass erosion into air stream Design Designed to withstand bends and sharp turns without kinking. Tough reinforced